Refrigerating apparatus



Dec. 4, .1928.

Z. WIRT REFRIGERATING APPARATUS Filed Nov. v,

1923 2 sheets-sheet 2 Patented Dee. 4, 192s.

` .1,694,156- UNITED STATES XPATENT f ,oFFlce/I zEBULoN WIM, or emana, NEBRASKA BEFRIGERATING APPARATUS.

This invention relates to arefrigerating apparatus and has for its object to provide a new and improved device of this description. The invention has as a further object toprovide a refrigerating apparatus of the absorption type using some suitable cooling agent such as ammonia which is continuously used by being changed from liquid to gas and gas to liquid, andwhich is so constructed as to be cheap, and simple ,in'const'rutiom and which atingl material used, such as ammonia, is heat-y ed so as to be converted into a gas.

-I have illustrated this generator absorber as being provided with a heater 2, which may be of any suitable description. For purt pose of illustration I have shown this heater as an oil heater supplied with fuel from the tank 3 through the pipe 4, the oil being controlled by the valver5. Thegenerator absorber 1 is shown as a water]acl*eted construction having'the' inner refrigerant container 6, the-space between the container 6 and the outer shell 1 being space for the water. 4The gas from the heater passes up through the central flue 7 to some suitable point of discharge. The refrigerant after being heated and converted into a gas passes up through the pipe 8 into the tubular rectifier cylinder 9 containing suitable baffles 10 for the purpose of extracting and returning the moisture from the evaporated refrigerant. The baffles in the rectifier are of a form that affords a zone of lower pressure, or slower fiow of gases and the moisture being of higherv specific gravity than the refrigerating gas condenses more freely and collects in the area of reduced turbulence or flow and returns in the generator absorber alongthe outer walls of the rectifier cylinder, and pipe connections. Y Y f This rectifier cylinder is provided with a I receptacle 13,

`the generator absorber.

. Application 'vled/ovember 7, 1923. Serial No. 673,350.

suitable vacuum and pressure gauge 11. The gaseous refrigerant passes from'the rectifier cylinder 9 through the pipe 9a, controlled by the valve 9b, and into the condensing coil 12, contained in the cooling receptacle13, thence throughY the vertical check valve 14 through the receiver 15. rThe coil 12, and the receiver 15 are cooled by some cooling medium as bein' submerged in water. The

fbr example, may have the water inlet and outlet 13a and 13b for the circulation of the water therethrough. The liquefied refrigerant then passes from the `receiver 15 into the pipe 16, controlled by the valve 16a, and thence to the expansion Valve and coils (not shown), which may be of any suitable type depending upon the particular use to whichl the refrigerant is applied. The refrigerant is then returned through pipe 17 to the bottom of the cooling receptacle 13, and thence through the coil 18 in the cooling chamber' and thence by pipe l 18a to the generator absorber pipe 18", being' controlled by valve 19. Any suitable absorbent material is used in the generator absorber, and the pipe 18b extends beneath the surface thereof and near the bottom ofthe container 6. This coil`18 is for the purpose of equalizing (reducing) the temperature of the returned expanded refrigerant before it enters The refrigerant isagain heated in the-generator absorber and passed through the cycle abo-ve set out. When the refrigerent is being heated the valve 19 isl closed and the valve 9b open andwhile the absorption is taking place the valve 9b is closed and the valve 19 open. There is a connection 20 from the generator absorber and the rectifier'9 to the flue 7and in this connection there is a relief valve 21 so that when the pressurereaches a predetermined amount the pressure will be relieved by a discharge into ythe flue 7. New refrigerant may be inserted into the generator absorber through the filling connection 22 having the closing plug 23. Where flowing water is not accessi:

ble there is provided a siphon tank 24 con-g taining water for cooling the generator aby sorber 1. This siphon tank is connected to the water jacket of the generator absorber by the pipes 25 and 26, controlling valve 27 is provided for controlling these sections. The generator :absorber is provided with a suitable water gauge 28 to indicate the height of the liquid therein.

I claim: flue for the heater extending up through A device of the kind described comprising the inner container and a connection between 10 a generator absorber having an inner conthe inner container, and said flue, said connectainer for the refrigerant material, means for tion being provided with a relief valve. 5 heating said inner container, an outer shell, Signed at Omaha, county of Douglas and means for circulating water between the in- State of Nebraska, this 3rd day of November, ner container and the outer shell, and a lrecti- 1923. 4 vfier connected with said inner container, a ZEBULON WIRT. 

